struct answer;
struct file_name_map_list;
-/* The first two groups, apart from '=', can appear in preprocessor
- expressions. This allows a lookup table to be implemented in
- _cpp_parse_expr.
+/* The first three groups, apart from '=', can appear in preprocessor
+ expressions (+= and -= are used to indicate unary + and - resp.).
+ This allows a lookup table to be implemented in _cpp_parse_expr.
The first group, to CPP_LAST_EQ, can be immediately followed by an
'='. The lexer needs operators ending in '=', like ">>=", to be in
#define CPP_LAST_EQ CPP_MAX
#define CPP_FIRST_DIGRAPH CPP_HASH
#define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
+#define CPP_LAST_CPP_OP CPP_LESS_EQ
#define TTYPE_TABLE \
OP(CPP_EQ = 0, "=") \
OP(CPP_COMMA, ",") /* grouping */ \
OP(CPP_OPEN_PAREN, "(") \
OP(CPP_CLOSE_PAREN, ")") \
+ TK(CPP_EOF, SPELL_NONE) \
OP(CPP_EQ_EQ, "==") /* compare */ \
OP(CPP_NOT_EQ, "!=") \
OP(CPP_GREATER_EQ, ">=") \
OP(CPP_LESS_EQ, "<=") \
\
+ /* These two are unary + / - in preprocessor expressions. */ \
OP(CPP_PLUS_EQ, "+=") /* math */ \
OP(CPP_MINUS_EQ, "-=") \
+\
OP(CPP_MULT_EQ, "*=") \
OP(CPP_DIV_EQ, "/=") \
OP(CPP_MOD_EQ, "%=") \
TK(CPP_COMMENT, SPELL_NUMBER) /* Only if output comments. */ \
/* SPELL_NUMBER happens to DTRT. */ \
TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
- TK(CPP_PADDING, SPELL_NONE) /* Whitespace for cpp0. */ \
- TK(CPP_EOF, SPELL_NONE) /* End of line or file. */
+ TK(CPP_PADDING, SPELL_NONE) /* Whitespace for cpp0. */
#define OP(e, s) e,
#define TK(e, s) e,
/* C language kind, used when calling cpp_reader_init. */
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
- CLK_GNUCXX, CLK_CXX98, CLK_OBJC, CLK_OBJCXX, CLK_ASM};
+ CLK_GNUCXX, CLK_CXX98, CLK_ASM};
/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */
struct cpp_string
} val;
};
-/* A standalone character. It is unsigned for the same reason we use
- unsigned char - to avoid signedness issues. */
-typedef unsigned int cppchar_t;
+/* A type wide enough to hold any multibyte source character.
+ cpplib's character constant interpreter requires an unsigned type.
+ Also, a typedef for the signed equivalent. */
+#ifndef MAX_WCHAR_TYPE_SIZE
+# define MAX_WCHAR_TYPE_SIZE WCHAR_TYPE_SIZE
+#endif
+#if CHAR_BIT * SIZEOF_INT >= MAX_WCHAR_TYPE_SIZE
+# define CPPCHAR_SIGNED_T int
+#else
+# if CHAR_BIT * SIZEOF_LONG >= MAX_WCHAR_TYPE_SIZE || !HAVE_LONG_LONG
+# define CPPCHAR_SIGNED_T long
+# else
+# define CPPCHAR_SIGNED_T long long
+# endif
+#endif
+typedef unsigned CPPCHAR_SIGNED_T cppchar_t;
+typedef CPPCHAR_SIGNED_T cppchar_signed_t;
/* Values for opts.dump_macros.
dump_only means inhibit output of the preprocessed text
const char *include_prefix;
unsigned int include_prefix_len;
- /* -fleading_underscore sets this to "_". */
- const char *user_label_prefix;
-
/* The language we're preprocessing. */
enum c_lang lang;
/* Non-0 means -v, so print the full set of include dirs. */
unsigned char verbose;
- /* Nonzero means chars are signed. */
- unsigned char signed_char;
-
/* Nonzero means use extra default include directories for C++. */
unsigned char cplusplus;
/* Nonzero means handle cplusplus style comments */
unsigned char cplusplus_comments;
- /* Nonzero means handle #import, for objective C. */
+ /* Nonzero means define __OBJC__, treat @ as a special token, and
+ use the OBJC[PLUS]_INCLUDE_PATH environment variable. */
unsigned char objc;
/* Nonzero means don't copy comments into the output file. */
/* Nonzero means warn if #import is used. */
unsigned char warn_import;
+ /* Nonzero means warn about multicharacter charconsts. */
+ unsigned char warn_multichar;
+
/* Nonzero means warn about various incompatibilities with
traditional C. */
unsigned char warn_traditional;
options. Stand-alone CPP should then bail out after option
parsing; drivers might want to continue printing help. */
unsigned char help_only;
+
+ /* True for traditional preprocessing. */
+ unsigned char traditional;
+
+ /* Target-specific features set by the front end or client. */
+
+ /* Precision for target CPP arithmetic, target characters, target
+ ints and target wide characters, respectively. */
+ size_t precision, char_precision, int_precision, wchar_precision;
+
+ /* Nonzero means chars (wide chars) are unsigned. */
+ unsigned char unsigned_char, unsigned_wchar;
+
+ /* Nonzero means __STDC__ should have the value 0 in system headers. */
+ unsigned char stdc_0_in_system_headers;
};
/* Call backs. */
void (*undef) PARAMS ((cpp_reader *, unsigned int, cpp_hashnode *));
void (*ident) PARAMS ((cpp_reader *, unsigned int, const cpp_string *));
void (*def_pragma) PARAMS ((cpp_reader *, unsigned int));
+ /* Called when the client has a chance to properly register
+ built-ins with cpp_define() and cpp_assert(). */
+ void (*register_builtins) PARAMS ((cpp_reader *));
};
#define CPP_FATAL_LIMIT 1000
extern void _cpp_backup_tokens PARAMS ((cpp_reader *, unsigned int));
/* Evaluate a CPP_CHAR or CPP_WCHAR token. */
-extern HOST_WIDE_INT
+extern cppchar_t
cpp_interpret_charconst PARAMS ((cpp_reader *, const cpp_token *,
- int, unsigned int *));
+ unsigned int *, int *));
+/* Used to register builtins during the register_builtins callback.
+ The text is the same as the command line argument. */
extern void cpp_define PARAMS ((cpp_reader *, const char *));
extern void cpp_assert PARAMS ((cpp_reader *, const char *));
extern void cpp_undef PARAMS ((cpp_reader *, const char *));
extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
-extern unsigned int cpp_parse_escape PARAMS ((cpp_reader *,
- const unsigned char **,
- const unsigned char *,
- unsigned HOST_WIDE_INT));
+/* Returns the value of an escape sequence, truncated to the correct
+ target precision. PSTR points to the input pointer, which is just
+ after the backslash. LIMIT is how much text we have. WIDE is true
+ if the escape sequence is part of a wide character constant or
+ string literal. Handles all relevant diagnostics. */
+extern cppchar_t cpp_parse_escape PARAMS ((cpp_reader *,
+ const unsigned char ** pstr,
+ const unsigned char *limit,
+ int wide));
/* In cpphash.c */
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